<!DOCTYPE html>
	<html lang="en">
	<head>
		<meta charset="UTF-8">
		<title>Document</title>
		<style type="text/css">
		body{background-color: black;}
		.box1{width: 200px;
			  height: 100px;
			  border: 5px solid #eee;
			  margin: 30px auto;
			  background-color: red;
			  text-align: center;
			  line-height: 100px;
			  font-size: 50px;
			  border-radius: 30px;
			  color:white;}

		.box1:hover{box-shadow: 10px 0 30px yellow;
			        color: yellow;}

			
		</style>
	
		
	</head>
	<body>
		<div class="box1">button</div>
	</body>
</html>